Nikon D5100 vs OM System OM-5
The Nikon D5100 and the OM System OM-5 are two digital cameras that were revealed to the public, respectively, in April 2011 and October 2022. The D5100 is a DSLR, while the OM-5 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D5100) and a Four Thirds (OM-5) sensor. The Nikon has a resolution of 16.1 megapixels, whereas the OM System provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5100 and the OM System OM-5? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Nikon D5100 and the OM System OM-5. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.
The OM-5 can be obtained in two different colors (black, silver), while the D5100 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the OM System OM-5 is notably smaller (14 percent) than the Nikon D5100. Moreover, the OM-5 is markedly lighter (26 percent) than the D5100. It is noteworthy in this context that the OM-5 is splash and dust-proof, while the D5100 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D5100) and the Micro Four Thirds Lens Catalog (OM-5). Mirrorless cameras, such as the OM-5, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
Concerning battery life, the D5100 gets 660 shots out of its Nikon EN-EL14 battery, while the OM-5 can take 310 images on a single charge of its OM System BLS-50 power pack. The power pack in the OM-5 can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D5100 | 128 mm | 97 mm | 79 mm | 560 g | 660 | n | Apr 2011 | US$ 749 | ebay.com | |
2. | OM System OM-5 | 125 mm | 85 mm | 50 mm | 414 g | 310 | Y | Oct 2022 | US$ 1 199 | amazon.com | |
3. | Canon T2i | 129 mm | 98 mm | 62 mm | 530 g | 440 | n | Feb 2010 | US$ 699 | ebay.com | |
4. | Nikon D3100 | 124 mm | 96 mm | 75 mm | 505 g | 550 | n | Aug 2010 | US$ 599 | ebay.com | |
5. | Nikon D3200 | 125 mm | 96 mm | 77 mm | 505 g | 540 | n | Apr 2012 | US$ 599 | ebay.com | |
6. | Nikon D5000 | 127 mm | 104 mm | 80 mm | 590 g | 510 | n | Apr 2009 | US$ 749 | ebay.com | |
7. | Nikon D5200 | 129 mm | 98 mm | 78 mm | 555 g | 500 | n | Nov 2012 | US$ 749 | ebay.com | |
8. | Nikon D5300 | 125 mm | 98 mm | 76 mm | 480 g | 600 | n | Oct 2013 | US$ 799 | ebay.com | |
9. | Nikon D5500 | 124 mm | 97 mm | 70 mm | 470 g | 820 | n | Jan 2015 | US$ 899 | ebay.com | |
10. | Nikon D5600 | 124 mm | 97 mm | 70 mm | 465 g | 970 | n | Nov 2016 | US$ 699 | ebay.com | |
11. | Nikon D7000 | 132 mm | 105 mm | 77 mm | 780 g | 1050 | Y | Sep 2010 | US$ 1 499 | ebay.com | |
12. | Olympus E-M1 | 130 mm | 94 mm | 63 mm | 497 g | 350 | Y | Sep 2013 | US$ 1 399 | ebay.com | |
13. | Olympus E-M5 II | 124 mm | 85 mm | 45 mm | 469 g | 310 | Y | Feb 2015 | US$ 1 099 | ebay.com | |
14. | Olympus E-M5 III | 125 mm | 85 mm | 50 mm | 414 g | 310 | Y | Oct 2019 | US$ 1 199 | ebay.com | |
15. | OM System OM-1 | 135 mm | 92 mm | 73 mm | 599 g | 520 | Y | Feb 2022 | US$ 2 199 | ebay.com | |
16. | Panasonic GX8 | 133 mm | 78 mm | 63 mm | 487 g | 330 | Y | Jul 2015 | US$ 1 199 | ebay.com | |
17. | Sony NEX-5N | 111 mm | 59 mm | 38 mm | 269 g | 460 | n | Aug 2011 | US$ 699 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The D5100 was launched at a markedly lower price (by 38 percent) than the OM-5, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
Sensor comparison
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon D5100 features an APS-C sensor and the OM System OM-5 a Four Thirds sensor. The sensor area in the OM-5 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the D5100 has a native 3:2 aspect ratio, while the one in the OM-5 offers a 4:3 aspect.
Despite having a smaller sensor, the OM-5 offers a higher resolution of 20.2 megapixels, compared with 16.1 MP of the D5100. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.80μm for the D5100). However, it should be noted that the OM-5 is much more recent (by 11 years and 6 months) than the D5100, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the OM-5 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the OM System OM-5 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the OM-5 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Nikon D5100 are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.
The OM-5 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the D5100, the OM-5 has the capacity to capture high quality composite images (80MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Nikon D5100 has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the OM System OM-5 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D5100 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.5 | 13.6 | 1183 | 80 | |
2. | OM System OM-5 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.4 | 13.4 | 1622 | 78 | |
3. | Canon T2i | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.1 | 11.5 | 784 | 66 | |
4. | Nikon D3100 | APS-C | 14.2 | 4608 | 3072 | 1080/24p | 22.5 | 11.3 | 919 | 67 | |
5. | Nikon D3200 | APS-C | 24.1 | 6016 | 4000 | 1080/30p | 24.1 | 13.2 | 1131 | 81 | |
6. | Nikon D5000 | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.7 | 12.5 | 868 | 72 | |
7. | Nikon D5200 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 24.2 | 13.9 | 1284 | 84 | |
8. | Nikon D5300 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.9 | 1338 | 83 | |
9. | Nikon D5500 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.1 | 14.0 | 1438 | 84 | |
10. | Nikon D5600 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.1 | 14.0 | 1306 | 84 | |
11. | Nikon D7000 | APS-C | 16.1 | 4928 | 3264 | 1080/24p | 23.5 | 13.9 | 1167 | 80 | |
12. | Olympus E-M1 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 23.0 | 12.7 | 757 | 73 | |
13. | Olympus E-M5 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.0 | 12.5 | 842 | 73 | |
14. | Olympus E-M5 III | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.3 | 13.1 | 1324 | 76 | |
15. | OM System OM-1 | Four Thirds | 20.2 | 5184 | 3888 | 4K/60p | 23.4 | 13.4 | 1553 | 77 | |
16. | Panasonic GX8 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.5 | 12.6 | 806 | 75 | |
17. | Sony NEX-5N | APS-C | 16.0 | 4912 | 3264 | 1080/60i | 23.6 | 12.7 | 1079 | 77 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the OM-5 provides a better video resolution than the D5100. It can shoot movie footage at 4K/30p, while the Nikon is limited to 1080/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the OM-5 has an electronic viewfinder (2360k dots), while the D5100 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the OM-5 offers a wider field of view (100%) than the one in the D5100 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the OM-5 has a higher magnification (0.68x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon D5100 and OM System OM-5 along with similar information for a selection of comparators.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D5100 | optical | n | 3.0 / 921 | swivel | n | 1/4000s | 4.0/s | Y | n | |
2. | OM System OM-5 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
3. | Canon T2i | optical | n | 3.0 / 1040 | fixed | n | 1/4000s | 3.7/s | Y | n | |
4. | Nikon D3100 | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
5. | Nikon D3200 | optical | n | 3.0 / 921 | fixed | n | 1/4000s | 4.0/s | Y | n | |
6. | Nikon D5000 | optical | n | 2.7 / 230 | full-flex | n | 1/4000s | 4.0/s | Y | n | |
7. | Nikon D5200 | optical | n | 3.0 / 921 | swivel | n | 1/4000s | 5.0/s | Y | n | |
8. | Nikon D5300 | optical | n | 3.2 / 1037 | swivel | n | 1/4000s | 5.0/s | Y | n | |
9. | Nikon D5500 | optical | n | 3.2 / 1037 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
10. | Nikon D5600 | optical | n | 3.2 / 1037 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
11. | Nikon D7000 | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 6.0/s | Y | n | |
12. | Olympus E-M1 | 2360 | n | 3.0 / 1037 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
13. | Olympus E-M5 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
14. | Olympus E-M5 III | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
15. | OM System OM-1 | 5760 | n | 3.0 / 1640 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
16. | Panasonic GX8 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
17. | Sony NEX-5N | optional | n | 3.0 / 920 | tilting | Y | 1/4000s | 10.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The D5100 has one, while the OM-5 does not. While the built-in flash of the D5100 is not very powerful, it can at times be useful as a fill-in light.
Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the OM-5 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Nikon D5100 and the OM System OM-5 both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Concerning the storage of imaging data, both the D5100 and the OM-5 write their files to SDXC cards. The OM-5 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the D5100 can use UHS-I cards (up to 104 MB/s).
Connectivity comparison
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Nikon D5100 and OM System OM-5 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D5100 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
2. | OM System OM-5 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
3. | Canon T2i | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
4. | Nikon D3100 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
5. | Nikon D3200 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
6. | Nikon D5000 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
7. | Nikon D5200 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
8. | Nikon D5300 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
9. | Nikon D5500 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
10. | Nikon D5600 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
11. | Nikon D7000 | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
12. | Olympus E-M1 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
13. | Olympus E-M5 II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
14. | Olympus E-M5 III | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
15. | OM System OM-1 | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | Y | |
16. | Panasonic GX8 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
17. | Sony NEX-5N | Y | stereo / mono | - | - | mini | 2.0 | - | - | - |
It is notable that the OM-5 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D5100 does not provide wifi capability.
The OM-5 is a recent model that features in the current product line-up of OM System. In contrast, the D5100 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D5100 was succeeded by the Nikon D5200. Further information on the features and operation of the D5100 and OM-5 can be found, respectively, in the Nikon D5100 Manual (free pdf) or the online OM System OM-5 Manual.
Review summary
So what conclusions can be drawn? Is the Nikon D5100 better than the OM System OM-5 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Nikon D5100:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Longer lasting: Can take more shots (660 versus 310) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in April 2011).
Advantages of the OM System OM-5:
- More detail: Has more megapixels (20.2 vs 16.1MP), which boosts linear resolution by 10%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.68x vs 0.51x).
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 4 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (125x85mm vs 128x97mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 146g or 26 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Reflects 11 years and 6 months of technical progress since the D5100 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the OM-5 is the clear winner of the contest (23 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Nikon D5100 and the OM System OM-5 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D5100 or the OM-5. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
Expert reviews
This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D5100 | 5/5 | + + | .. | 76/100 | 4.5/5 | 4.5/5 | Apr 2011 | US$ 749 | ebay.com | |
2. | OM System OM-5 | 5/5 | .. | 4.5/5 | 83/100 | 5/5 | 4.5/5 | Oct 2022 | US$ 1 199 | amazon.com | |
3. | Canon T2i | .. | + + | .. | 77/100 | 4/5 | 4.5/5 | Feb 2010 | US$ 699 | ebay.com | |
4. | Nikon D3100 | 5/5 | + + | .. | 72/100 | 4.5/5 | 4.5/5 | Aug 2010 | US$ 599 | ebay.com | |
5. | Nikon D3200 | 5/5 | + + | .. | 73/100 | 4.5/5 | 4.5/5 | Apr 2012 | US$ 599 | ebay.com | |
6. | Nikon D5000 | .. | + + | .. | 75/100 | 4/5 | 4.5/5 | Apr 2009 | US$ 749 | ebay.com | |
7. | Nikon D5200 | 4/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Nov 2012 | US$ 749 | ebay.com | |
8. | Nikon D5300 | 4/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Oct 2013 | US$ 799 | ebay.com | |
9. | Nikon D5500 | 5/5 | + | .. | 79/100 | 4.5/5 | 4.5/5 | Jan 2015 | US$ 899 | ebay.com | |
10. | Nikon D5600 | 4/5 | .. | 4/5 | 79/100 | 4.5/5 | 4/5 | Nov 2016 | US$ 699 | ebay.com | |
11. | Nikon D7000 | 4/5 | .. | .. | 80/100 | 4.5/5 | 4.5/5 | Sep 2010 | US$ 1 499 | ebay.com | |
12. | Olympus E-M1 | 5/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2013 | US$ 1 399 | ebay.com | |
13. | Olympus E-M5 II | 5/5 | + + | 4.5/5 | 81/100 | 5/5 | 5/5 | Feb 2015 | US$ 1 099 | ebay.com | |
14. | Olympus E-M5 III | 5/5 | + | 5/5 | 82/100 | 4.5/5 | 4.5/5 | Oct 2019 | US$ 1 199 | ebay.com | |
15. | OM System OM-1 | 5/5 | .. | .. | 87/100 | 5/5 | 4.5/5 | Feb 2022 | US$ 2 199 | ebay.com | |
16. | Panasonic GX8 | 5/5 | + | .. | 82/100 | 4.5/5 | 4.5/5 | Jul 2015 | US$ 1 199 | ebay.com | |
17. | Sony NEX-5N | 3/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Aug 2011 | US$ 699 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 100D vs Nikon D5100
- Canon 450D vs Nikon D5100
- Canon 800D vs Nikon D5100
- Fujifilm GFX 100S vs OM System OM-5
- Fujifilm X20 vs Nikon D5100
- Nikon D5100 vs Nikon D7500
- Nikon D5100 vs Olympus E-M1X
- Nikon D6 vs OM System OM-5
- Nikon D60 vs OM System OM-5
- Nikon P950 vs OM System OM-5
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Specifications: Nikon D5100 vs OM System OM-5
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Nikon D5100 | OM System OM-5 |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Nikon F mount lenses | Micro Four Thirds lenses |
Launch Date | April 2011 | October 2022 |
Launch Price | USD 749 | USD 1,199 |
Sensor Specs | Nikon D5100 | OM System OM-5 |
Sensor Technology | CMOS | CMOS |
Sensor Format | APS-C Sensor | Four Thirds Sensor |
Sensor Size | 23.6 x 15.7 mm | 17.3 x 13.0 mm |
Sensor Area | 370.52 mm2 | 224.9 mm2 |
Sensor Diagonal | 28.3 mm | 21.6 mm |
Crop Factor | 1.5x | 2.0x |
Sensor Resolution | 16.1 Megapixels | 20.2 Megapixels |
Image Resolution | 4928 x 3264 pixels | 5184 x 3888 pixels |
Pixel Pitch | 4.80 μm | 3.34 μm |
Pixel Density | 4.34 MP/cm2 | 8.96 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 1080/30p Video | 4K/30p Video |
ISO Setting | 100 - 6,400 ISO | 200 - 25,600 ISO |
ISO Boost | 100 - 25,600 ISO | 64 - 25,600 ISO |
Image Processor | EXPEED 2 | TruePic IX |
DXO Sensor Quality (score) | 80 | .. |
DXO Color Depth (bits) | 23.5 | .. |
DXO Dynamic Range (EV) | 13.6 | .. |
DXO Low Light (ISO) | 1183 | .. |
Screen Specs | Nikon D5100 | OM System OM-5 |
Viewfinder Type | Optical viewfinder | Electronic viewfinder |
Viewfinder Field of View | 95% | 100% |
Viewfinder Magnification | 0.51x | 0.68x |
Viewfinder Resolution | 2360k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 921k dots | 1040k dots |
LCD Attachment | Swivel screen | Swivel screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Nikon D5100 | OM System OM-5 |
Focus System | Phase-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 4 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | no E-Shutter | up to 1/32000s |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | UHS-I | UHS-II |
Connectivity Specs | Nikon D5100 | OM System OM-5 |
External Flash | Hotshoe | Hotshoe |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Wifi Support | no Wifi | Wifi built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Body Specs | Nikon D5100 | OM System OM-5 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Nikon EN-EL14 | OM System BLS-50 |
Battery Life (CIPA) | 660 shots per charge | 310 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
128 x 97 x 79 mm (5.0 x 3.8 x 3.1 in) |
125 x 85 x 50 mm (4.9 x 3.3 x 2.0 in) |
Camera Weight | 560 g (19.8 oz) | 414 g (14.6 oz) |
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